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Cao, JJ; Wan, PH; Yang, JM; Zhu, JY; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordElectroweak Symmetry-breaking Equivalence Theorem Standard Model Precise Formulation Boson Anatomy Bounds Mass
AbstractIn light of the significant progress of the LHC to determine the properties of the Higgs boson, we investigate the capability of the Manohar-Wise model in explaining the Higgs data. This model extends the SM by one family of color-octet and isospin-doublet scalars, and it can sizably alter the coupling strengths of the Higgs boson with gluons and photons. We first examine the current constraints on the model, which are from unitarity, the LHC searches for the scalars and the electroweak precision data (EWPD). In implementing the unitarity constraint, we use the properties of the SU(3) group to simplify the calculation. Then in the allowed parameter space we perform a fit of the model, using the latest ATLAS and CMS data, respectively. We find that the Manohar-Wise model is able to explain the data with chi(2) significantly smaller than the SM value. We also find that the current Higgs data, especially the ATLAS data, are very powerful in further constraining the parameter space of the model. In particular, in order to explain the gamma gamma enhancement reported by the ATLAS collaboration, the sign of the hgg coupling is usually opposite to that in the SM.
2013
ISSN1029-8479
Issue8Pages:9
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10775039, 11075045, 11275245, 10821504, 11135003]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15301
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
Recommended Citation
GB/T 7714
Cao, JJ,Wan, PH,Yang, JM,et al. The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(8):9.
APA Cao, JJ,Wan, PH,Yang, JM,Zhu, JY,&Cao, JJ .(2013).The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data.JOURNAL OF HIGH ENERGY PHYSICS(8),9.
MLA Cao, JJ,et al."The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data".JOURNAL OF HIGH ENERGY PHYSICS .8(2013):9.
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